The closer your lights are, the softer they are, sure. I would light with a main light fired though at least a 4x6 foot panel covered with fabric or diffusion material like shower curtain. A similar sized reflective white panel camera right would make a good bounce-fill. Overhead light from behind, and above for separation. Muslin backdrops would work well. Agreed--make the shooting area a raised platform, and put a fence on the sides, for animal containment.
I would do this: install an overhead 4 foot by 6 foot wide PVC pipe or wooden frame fitted with a white diffusing front panel. Angle the panel slightly forward toward the camera. Put foam board
side-skirts on the panel, and a fairly deep, 18 to 24 inch deep black foam-board light blocking strip that keeps the lens from being flared. Aim two flash units inside, firing in from a hole cut into each side-skirt panel. This would be your overhead Top Lighter or Skylighter, pretty much left on on every single shot as a soft, overhead hairlight/separation light. It would be permanently affixed to the ceiling.
Here's an old sketch, complete with the simulated degree of light fall-off you could expect if you fired
ONE, single light into the overhead box, from the left side. This allows you to create a stronger light on the left side, but to still have some top light from the shadow side. In a small studio, you'd probably want a back skirt, to keep black backdrops pure black.
For a main light, I would light using a BIG panel...the cheapest is a diffused, frosted shower curtain stretched tight...say 72 x 72 inches square, on a rolling, light-gauge steel pipe
garment hanging rack,like the ones linked to below
http://www.wayfair.com/Richards-Hom...Garment-Rack-Clothes-Hanger-320-VUQA1304.html
Free Standing Storage Rolling Garment Rack Clothes Hanger by
Richards Homewares
or a bigger one.
http://www.wayfair.com/Richards-Hom...-Commercial-Garment-Rack-9550KD-VUQA1229.html
Why? Simple. CHEAP. On a wheeled base! Ready for a $5 shower curtain, or even two…eliminates need for two light stands. Makes a great base to mount foam-boards, or other fabrics. Small one is like $24, the big one is $71, but it eliminates two light stands and a crossbar, AND it rolls. Diffusing panels are $5.99-$7.98, shower curtain rings $1.99 a set.